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Add fini routines for usbserial and rename grub_usbserial to grub_ftdi

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-07-18 17:40:42 +02:00
parent dd20a7868b
commit 24494d478a
5 changed files with 118 additions and 58 deletions
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87
bus/usb/serial/ftdi.c
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@ -25,14 +25,14 @@
enum
{
GRUB_USBSERIAL_MODEM_CTRL = 0x01,
GRUB_USBSERIAL_FLOW_CTRL = 0x02,
GRUB_USBSERIAL_SPEED_CTRL = 0x03,
GRUB_USBSERIAL_DATA_CTRL = 0x04
GRUB_FTDI_MODEM_CTRL = 0x01,
GRUB_FTDI_FLOW_CTRL = 0x02,
GRUB_FTDI_SPEED_CTRL = 0x03,
GRUB_FTDI_DATA_CTRL = 0x04
};
#define GRUB_USBSERIAL_MODEM_CTRL_DTRRTS 3
#define GRUB_USBSERIAL_FLOW_CTRL_DTRRTS 3
#define GRUB_FTDI_MODEM_CTRL_DTRRTS 3
#define GRUB_FTDI_FLOW_CTRL_DTRRTS 3
/* Convert speed to divisor. */
static grub_uint32_t
@ -85,20 +85,20 @@ real_config (struct grub_serial_port *port)
return;
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_VENDOR_OUT,
GRUB_USBSERIAL_MODEM_CTRL,
GRUB_USBSERIAL_MODEM_CTRL_DTRRTS, 0, 0, 0);
GRUB_FTDI_MODEM_CTRL,
GRUB_FTDI_MODEM_CTRL_DTRRTS, 0, 0, 0);
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_VENDOR_OUT,
GRUB_USBSERIAL_FLOW_CTRL,
GRUB_USBSERIAL_FLOW_CTRL_DTRRTS, 0, 0, 0);
GRUB_FTDI_FLOW_CTRL,
GRUB_FTDI_FLOW_CTRL_DTRRTS, 0, 0, 0);
divisor = get_divisor (port->config.speed);
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_VENDOR_OUT,
GRUB_USBSERIAL_SPEED_CTRL,
GRUB_FTDI_SPEED_CTRL,
divisor & 0xffff, divisor >> 16, 0, 0);
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_VENDOR_OUT,
GRUB_USBSERIAL_DATA_CTRL,
GRUB_FTDI_DATA_CTRL,
parities[port->config.parity]
| stop_bits[port->config.stop_bits]
| port->config.word_len, 0, 0, 0);
@ -108,17 +108,13 @@ real_config (struct grub_serial_port *port)
/* Fetch a key. */
static int
usbserial_hw_fetch (struct grub_serial_port *port)
ftdi_hw_fetch (struct grub_serial_port *port)
{
char cc[3];
grub_usb_err_t err;
real_config (port);
err = grub_usb_bulk_read (port->usbdev, port->in_endp->endp_addr, 2, cc);
if (err != GRUB_USB_ERR_NAK)
return -1;
err = grub_usb_bulk_read (port->usbdev, port->in_endp->endp_addr, 3, cc);
if (err != GRUB_USB_ERR_NONE)
return -1;
@ -128,7 +124,7 @@ usbserial_hw_fetch (struct grub_serial_port *port)
/* Put a character. */
static void
usbserial_hw_put (struct grub_serial_port *port, const int c)
ftdi_hw_put (struct grub_serial_port *port, const int c)
{
char cc = c;
@ -138,7 +134,7 @@ usbserial_hw_put (struct grub_serial_port *port, const int c)
}
static grub_err_t
usbserial_hw_configure (struct grub_serial_port *port,
ftdi_hw_configure (struct grub_serial_port *port,
struct grub_serial_config *config)
{
grub_uint16_t divisor;
@ -165,11 +161,19 @@ usbserial_hw_configure (struct grub_serial_port *port,
return GRUB_ERR_NONE;
}
static struct grub_serial_driver grub_usbserial_driver =
static void
ftdi_fini (struct grub_serial_port *port)
{
port->usbdev->config[port->configno].interf[port->interfno].detach_hook = 0;
port->usbdev->config[port->configno].interf[port->interfno].attached = 0;
}
static struct grub_serial_driver grub_ftdi_driver =
{
.configure = usbserial_hw_configure,
.fetch = usbserial_hw_fetch,
.put = usbserial_hw_put
.configure = ftdi_hw_configure,
.fetch = ftdi_hw_fetch,
.put = ftdi_hw_put,
.fini = ftdi_fini
};
static const struct
@ -180,8 +184,19 @@ static const struct
{0x0403, 0x6001} /* QEMU virtual USBserial. */
};
static int ftdinum = 0;
static void
ftdi_detach (grub_usb_device_t usbdev, int configno, int interfno)
{
static struct grub_serial_port *port;
port = usbdev->config[configno].interf[interfno].detach_data;
grub_serial_unregister (port);
}
static int
grub_ftdi_attach (grub_usb_device_t usbdev, int configno, int interfno)
grub_ftdi_attach_real (grub_usb_device_t usbdev, int configno, int interfno)
{
static struct grub_serial_port *port;
int j;
@ -196,7 +211,7 @@ grub_ftdi_attach (grub_usb_device_t usbdev, int configno, int interfno)
return 0;
}
port->name = grub_xasprintf ("usb%d", usbdev->addr);
port->name = grub_xasprintf ("ftdi%d", ftdinum++);
if (!port->name)
{
grub_free (port);
@ -205,7 +220,7 @@ grub_ftdi_attach (grub_usb_device_t usbdev, int configno, int interfno)
}
port->usbdev = usbdev;
port->driver = &grub_usbserial_driver;
port->driver = &grub_ftdi_driver;
for (j = 0; j < interf->endpointcnt; j++)
{
struct grub_usb_desc_endp *endp;
@ -229,14 +244,22 @@ grub_ftdi_attach (grub_usb_device_t usbdev, int configno, int interfno)
return 0;
}
port->configno = configno;
port->interfno = interfno;
grub_serial_config_defaults (port);
grub_serial_register (port);
port->usbdev->config[port->configno].interf[port->interfno].detach_hook
= ftdi_detach;
port->usbdev->config[port->configno].interf[port->interfno].detach_data
= port;
return 1;
}
static int
grub_usbserial_attach (grub_usb_device_t usbdev, int configno, int interfno)
grub_ftdi_attach (grub_usb_device_t usbdev, int configno, int interfno)
{
unsigned j;
@ -247,16 +270,22 @@ grub_usbserial_attach (grub_usb_device_t usbdev, int configno, int interfno)
if (j == ARRAY_SIZE (products))
return 0;
return grub_ftdi_attach (usbdev, configno, interfno);
return grub_ftdi_attach_real (usbdev, configno, interfno);
}
struct grub_usb_attach_desc attach_hook =
{
.class = 0xff,
.hook = grub_usbserial_attach
.hook = grub_ftdi_attach
};
GRUB_MOD_INIT(usbserial_ftdi)
{
grub_usb_register_attach_hook_class (&attach_hook);
}
GRUB_MOD_FINI(usbserial_ftdi)
{
grub_serial_unregister_driver (&grub_ftdi_driver);
grub_usb_unregister_attach_hook_class (&attach_hook);
}